🏢 Immutable Tenant GUID & Umbrella Mapping
Domains are disposable, but Microsoft & Google Tenant GUIDs are permanent. Map corporate hierarchies, holding companies, and conglomerate subsidiaries in one call.
DomainSignal.io · sub-30ms edge intelligence
DomainSignal.io — Real-Time Domain & Mailbox Infrastructure Intelligence.
Verify M365 vs. Google Workspace, extract corporate SSO/SAML providers, and detect Proofpoint/Mimecast firewalls in under 30ms. No scraping. 100% deterministic.
Live Interactive Sandbox
Runs GET /v1/probe?demo=true from your browser. No key required.
response.json
// Probe a domain to see live intelligence
Capability matrix
Institutional Infrastructure Intelligence
Six deterministic signals in one edge call — tenant identity, SEG posture, tech-stack leaks, sovereign cloud, deliverability, and dead-domain filtering.
🛡️ Email Security Gateway (SEG) Detection
Instantly identify Proofpoint, Mimecast, and Barracuda firewalls. Tells outbound SDR bots to strip tracking pixels and links to avoid aggressive sandboxing.
🔍 Zero-Auth CRM & Tech Stack Leaks
Decodes DNS SPF include mechanisms in <10ms to unmask active enterprise software: Salesforce, HubSpot, Marketo, Zendesk, Klaviyo, and SendGrid.
🇺🇸 Sovereign GovCloud & GCC High Flagging
Detects Microsoft USGov GCC High and DoD sovereign cloud instances for aerospace, defense, and compliance contractors requiring ITAR/DFARS.
📊 RFC 7208 Deliverability Health Score (0-100)
Synthesizes DMARC enforcement and counts nested SPF DNS lookups. Warns you before sending to domains suffering from the RFC 7208 10-lookup PermError.
🪦 Dead & Parked Domain Filtering
Automatically flags registrar holding pages (GoDaddy, Namecheap, Sedo, Bodis) so your scrapers and cold campaigns never waste tokens on dead companies.
Get Free API Key (250 Credits Instant)
Provision a ds_live_ key in one click. Email is optional.
NO MONTHLY SUBSCRIPTIONS • CREDITS NEVER EXPIRE
Transparent, Metered Pricing
Pay once. Run your outbound campaigns, enrichment tables, or AI agents whenever you want.
Starter Pack
$35 One-time
1,500 Credits
⚡ $0.023 / lookup
- Credits never expire
- Full API & Clay access
- Standard edge routing
Growth Pack
$199 One-time
15,000 Credits
⚡ $0.013 / lookup (Save 43%)
- Credits never expire
- Perfect for monthly agency campaigns
- Priority edge routing
- Webhook auto-recharge
Scale Pack
$799 One-time
100,000 Credits
⚡ $0.008 / lookup (Save 65%)
- Credits never expire
- Institutional-scale outbound
- Sub-25ms global SLA
- Dedicated support
Need Custom Volume? (100,000+ Credits)
Lock in our floor rate of $0.008 per lookup for any volume above 100,000.
250,000 lookups
Total: $2,000
$0.008 / lookup
🤖 Building an Autonomous Agent? Pay as you go via x402 on Base at $0.02 USDC / lookup with zero human signup.
Quickstart
Drop these into an agent, script, or Clay column. Replace YOUR_KEY with your live key.